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Significance of plastic biodegradation

in the past100What is the regrettable technological invention of the year? Answer: Plastic. The wide application of plastics has indeed facilitated people’s lives, but the problem of white pollution due to the difficulty of decomposing has also left people scratching their heads. With the strengthening of the concept of environmental protection and sustainable development, and the increasing severity of white pollution caused by traditional plastics, all countries have focused on white pollution control.From the perspective of the diversity of application fields, plastics are widely used in food packaging, textiles, communications, transportation, construction, and other industries, and can be said to be one of the most important materials in the world today. Currently, most of the plastics people use are produced from petrochemicals. For the sustainable development of human society, people’s demand for plastics has also begun to increase to deal with increasingly serious problems and waste disposal. Plastics, including biodegradable plastics, are one of the focuses and hotspots of today’s environmental and material academic research.In fact, since this year, policies have continued to strengthen plastic pollution control.2020year1moon19On the 1st, the National Development and Reform Commission and the Ministry of Ecology and Environment issued the “Opinions on Further Strengthening the Control of Plastic Pollution”.4moon10On the 1st, the National Development and Reform Commission issued the “Prohibition, Restriction of Production, Sales and Use of Plastic Leather Committee” issued the “Catalogue of Prohibition, Restriction of Production, Sales and Use of Plastic Products” (draft), and various traditional plastic products ushered in restrictions. At the same time, party and government organs, institutions, state-owned enterprises and other units should take the lead in using degradable plastic products or non-plastic products. goal is to2022In 2018, the production capacity of biodegradable plastic raw materials will reach20more than 10,000 tons; to2025years, will be further increased to50more than 10,000 tons.According to the forecast of Huaxi Securities, the consumer demand for degradable plastics in other fields is ignored, and only four fields such as express delivery and takeaway are considered.14310,000 tons of replacement demand. If the average price per ton2.5ten thousand yuan,2025The annual degradable plastic market size will reach358billion. As a kind of degradable plastic, biodegradable plastic is expected to be an alternative material for traditional plastics because it has properties close to ordinary plastics. Bio-based degradable plastics can be composted under specific conditions to achieve rapid degradation, environmental friendliness, and resource conservation. At the same time, it can also produce organic fertilizers and soil conditioners, change soil, increase income, stabilize agriculture and production. Compared with traditional plastics, biodegradable plastics can reduce carbon emissions even when entering the household waste incineration process40%-60%. In addition, biodegradable plastics can also greatly reduce the emission of harmful substances such as dioxins and polychlorinated biphenyls. It is not difficult to see that there is still a long way to go in the development of degradable plastics in the future.

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